fix(spanner): update the api

#### spanner:v1

The following keys were changed:
- endpoints (Total Keys: 1)

googleapiclient/discovery_cache/documents/spanner.v1.json

@@ -29,13 +29,33 @@
 },
 {
 "description": "Regional Endpoint",
+"endpointUrl": "https://spanner.us-central1.rep.googleapis.com/",
+"location": "us-central1"
+},
+{
+"description": "Regional Endpoint",
 "endpointUrl": "https://spanner.us-east1.rep.googleapis.com/",
 "location": "us-east1"
 },
 {
 "description": "Regional Endpoint",
+"endpointUrl": "https://spanner.us-east4.rep.googleapis.com/",
+"location": "us-east4"
+},
+{
+"description": "Regional Endpoint",
+"endpointUrl": "https://spanner.us-east5.rep.googleapis.com/",
+"location": "us-east5"
+},
+{
+"description": "Regional Endpoint",
 "endpointUrl": "https://spanner.us-west1.rep.googleapis.com/",
 "location": "us-west1"
+},
+{
+"description": "Regional Endpoint",
+"endpointUrl": "https://spanner.us-west4.rep.googleapis.com/",
+"location": "us-west4"
 }
 ],
 "fullyEncodeReservedExpansion": true,
@@ -3264,7 +3284,7 @@
 }
 }
 },
-"revision": "20240910",
+"revision": "20240918",
 "rootUrl": "https://spanner.googleapis.com/",
 "schemas": {
 "AutoscalingConfig": {
@@ -4547,7 +4567,7 @@
 "enumDescriptions": [
 "The default mode. Only the statement results are returned.",
 "This mode returns only the query plan, without any results or execution statistics information.",
-"This mode returns both the query plan and the execution statistics along with the results. This has a performance overhead compared to the NORMAL mode. It is not recommended to use this mode for production traffic."
+"This mode returns the query plan, overall execution statistics, operator level execution statistics along with the results. This has a performance overhead compared to the other modes. It is not recommended to use this mode for production traffic."
 ],
 "type": "string"
 },